/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.facebook.thrift.serialization;

import com.facebook.thrift.test.JustABinary;
import com.facebook.thrift.test.TestUnion;
import java.util.ArrayList;
import org.junit.Assert;
import org.junit.Test;

public class UnionTest {
  @Test
  public void testCreatingUnionUnTyped() {
    TestUnion.from(TestUnion._ABINARY, JustABinary.defaultInstance());
  }

  @Test(expected = IllegalArgumentException.class)
  public void testCreatingInvalidType() {
    TestUnion.from(Integer.MIN_VALUE, JustABinary.defaultInstance());
  }

  @Test(expected = IllegalArgumentException.class)
  public void testInvalidObject() {
    TestUnion.from(TestUnion._ABINARY, new ArrayList<>());
  }

  @Test
  public void testUnionType() {
    TestUnion anUnion = TestUnion.from(TestUnion._ABINARY, JustABinary.defaultInstance());
    Assert.assertEquals(anUnion.getThriftUnionType(), TestUnion.TypeEnum.A_BINARY);
  }

  @Test
  public void testEmptyUnion() {
    TestUnion anUnion = new TestUnion();
    Assert.assertEquals(anUnion.getThriftUnionType(), TestUnion.TypeEnum.__FBTHRIFT_EMPTY_UNION__);
  }
}
